Method for controlling display mode in portable computer

ABSTRACT

Disclosed are embodiments of a method and an apparatus for controlling a display mode in a portable computer. When a display mode of a liquid crystal display (LCD) is changed such as in response to a user&#39;s request, information of the changed display mode is stored being associated with a system mode. When a system is rebooted or the system mode is changed in a state in which the display mode information is stored, display mode information stored being associated with a current system mode is read, and the LCD display mode is set to an arbitrary display mode corresponding to the read display mode information. And, when a change of the LCD display mode is requested by the user, a wallpaper image for the requested display mode can be retrieved from among wallpaper images for display modes stored separately and displayed on the LCD.

Notice: More than one reissue application has been filed for the reissueof U.S. Pat. No. 7,158,154. The reissue applications are applicationSer. No. 13/112,164, filed May 20, 2011 and U.S. application Ser. No.12/318,604, filed Dec. 31, 2008 (now U.S. Reissue Pat. No. Re. 42,616).The present application is a continuation application of U.S.application Ser. No. 12/318,604, filed Dec. 31, 2008 now U.S. Pat. No.Re. 42,616.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates method and apparatus for controlling adisplay mode in a portable computer.

2. Background of the Related Art

Tablet computers have been developed on the basis of advantageouseffects of desktop, notebook and handheld computers. A notebook computeris referred to as a mobile computer. But, when the notebook computer isused, its main body must be positioned on a fixed base surface.Meanwhile, a tablet computer can be easily used on a user's hand like apersonal digital assistant (PDA). The tablet computer enables the userto directly take notes on a monitor using an electronic pen in place ofa keyboard. Since an input unit in the tablet computer is based upon atouch screen, a special input unit such as a mouse is not necessary, andhence, the tablet computer can be conveniently used. Thus, the tabletcomputer has excellent mobility and convenience. Furthermore, since thetablet computer includes the computer's basic components inside themonitor, its exterior is simple. A portable computer can implement thenotebook computer function and the tablet computer function in a singlesystem in order for the user to conveniently and selectively use anotebook computer function and a tablet computer function.

A prior art portable computer automatically converts a display mode ofits display to a landscape or portrait mode, which is a correspondingdefault display mode for a converted system mode when the system mode isconverted from a notebook mode into a tablet mode or vice versa, or whena docking device is connected. For example, a display operation of thedisplay is carried out in the landscape mode when the system mode isconverted into the notebook mode as shown in FIG. 2, and the displayoperation of the display is carried out in the portrait mode when thesystem mode is converted into the tablet mode as shown in FIG. 3. Whenthe docking device is connected to the prior art portable computer, thedisplay operation of the display is carried out in the landscape orportrait mode set appropriately to an application program of theconnected docking device. Thus, the default display mode predeterminedto be the most appropriate for the system mode is automatically set.

Since the prior art portable computer automatically forces the displayto carry out the display operation in only one display mode previouslydetermined for a system mode or a docking device when the system mode isconverted or the docking device is connected, the display mode of thedisplay cannot be arbitrarily changed to the user-desired display mode.For example, the display operation of the display cannot beautomatically carried out in the portrait mode when the system mode isconverted into the notebook mode. Further, the display operation of thedisplay cannot be automatically carried out in the landscape mode whenthe system mode is converted into the tablet mode. Consequently, theuser cannot change the LCD display mode automatically to various displaymodes other than the previously determined display mode.

In addition, the prior art portable computer outputs a wallpaper imageof a predetermined aspect ratio such as a landscape mode having anaspect ratio of ‘1024×768’ to the display as shown in FIG. 4. Thewallpaper image may consist of a logo of a portable computermanufacturer, a particular background picture, etc.

When a user requests, for example using a touch screen digitizer or akeyboard (not shown), a display mode of the display to be converted fromthe landscape mode into the portrait mode or a 90 degree rotational modein which the display operation of the display is carried out in adirection rotated by 90 degrees, the display mode of the display ischanged to the requested portrait mode or 90 degree rotational mode.However, the landscape wallpaper image having the aspect ratio of‘1024×768’ is converted into a resized portrait wallpaper image havingan aspect ratio of ‘768×1024’ or ‘600×800’ or a wallpaper image that isrotated by 90 degrees and resized to have an aspect ratio of ‘1024×768’by a video controller, and then, the converted wallpaper image isoutputted to the display. Accordingly, there is a problem in that alogo, a background pattern, or/and a background picture included in thewallpaper image are all displayed in a distorted state as shown in FIG.4.

The above references are incorporated by reference herein whereappropriate for appropriate teachings of additional or alternativedetails, features and/or technical background.

SUMMARY OF THE INVENTION

An object of the invention is to solve at least the above problemsand/or disadvantages and to provide at least the advantages describedhereinafter.

Another object of the present invention is to provide a method and anapparatus for controlling a display mode in a portable computer thatenables a display to carry out a display operation in a selected displaymode variably set for a converted system mode.

Another object of the present invention is to provide a method and anapparatus for controlling a display mode in a portable computer thatenables a display to carry out a display operation in a display mode setfor a converted system mode by a user when a system is rebooted, asystem mode is switched between a tablet mode and a notebook mode, or adocking device is connected.

Another object of the present invention to provide a method and anapparatus for controlling a display mode in a portable computer thatenables a user to arbitrarily change the LCD display mode to variousdisplay modes.

Another object of the present invention to provide a method and anapparatus for controlling a display mode in a portable computer that cancorrectly display an image when the display mode is converted.

Another object of the present invention to provide a method and anapparatus for controlling a display mode in a portable computer thatenables a logo, a background picture, etc. included in a wallpaper imageto be displayed without being distorted when the display mode isconverted.

In order to achieve at least the above objects in a whole or in part, inaccordance with one aspect of the present invention there is provided amethod for controlling a display mode in a portable computer thatincludes storing information of a changed display mode when the displaymode of a display is changed in response to a user's request and settingthe display mode to an arbitrary display mode corresponding to thestored changed display mode information when at least one of a systempower supply of the portable computer is enabled and a system mode ischanged.

To further achieve at least the above objects in a whole or in part, inaccordance with one aspect of the present invention there is provided amethod for controlling a display mode in a portable computer including adisplay that supports at least two system modes that includes storinginformation of a changed display mode when the display mode of a displayis changed in association with a system mode and setting the displaymode of the display to an arbitrary display mode corresponding to thestored display mode information associated with a current system modewhen the portable computer is turned on.

To further achieve at least the above objects and advantages in a wholeor in part, in accordance with one aspect of the present invention thereis provided an article including a machine-readable storage mediumcontaining instructions for controlling a display mode in a portablecomputer, the instructions, when executed, causing the portable computerto store information of a changed display mode corresponding to a systemmode when the display mode of a display is changed, read the storeddisplay mode information corresponding to a current system mode when asystem is turned on or the system mode is changed when the display modeinformation is stored and set the display mode to correspond to the readdisplay mode information.

To further achieve at least the above objects in a whole or in part, inaccordance with one aspect of the present invention there is provided amethod for controlling a display mode in a portable computer thatincludes when a change of the display mode of a display is requested bya user, retrieving a wallpaper image for the requested display modeamong at least two wallpaper images previously stored each associatedwith different display modes and displaying the retrieved wallpaperimage on the display.

To further achieve at least the above objects in a whole or in part, inaccordance with one aspect of the present invention there is provided aportable computer having a configuration that is capable of switching asystem mode between a notebook computer mode and a tablet computer modethat includes a display configured to support at least two display modeorientations, an input device configured to change a display modeorientation of the display according to a user's selection, a storagedevice configured to store the changed display mode orientation of thedisplay corresponding to the system mode and a controller configured toset the display mode orientation of the display to correspond to thestored display mode orientation corresponding to a current system modewhen the system mode is changed.

To further achieve at least the above objects in a whole or in part, inaccordance with one aspect of the present invention there is provided anapparatus for controlling a display mode in a portable computerincluding a liquid crystal display (LCD) for supporting at least twodisplay modes that includes first storing unit for storing display modeinformation of the LCD changed by a user, wherein the display modeinformation is stored associated with a system mode and control unit forsetting the LCD display mode to an arbitrary display mode correspondingto display mode information stored in association with a current systemmode when a system is booted or a system mode is changed in a state inwhich the display mode information is stored.

Additional advantages, objects, and features of the invention will beset forth in part in the description which follows and in part willbecome apparent to those having ordinary skill in the art uponexamination of the following or may be learned from practice of theinvention. The objects and advantages of the invention may be realizedand attained as particularly pointed out in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in detail with reference to thefollowing drawings in which like reference numerals refer to likeelements wherein:

FIG. 1 is a block diagram illustrating the configuration of a relatedart portable computer;

FIG. 2 is a diagram illustrating an operating state in which a displaymode is set to a landscape mode being a default display mode for anotebook mode in a prior art portable computer;

FIG. 3 is a diagram illustrating an operating state in which a displaymode is set to a portrait mode being a default display mode for a tabletmode in a prior art portable computer;

FIG. 4 is a diagram illustrating an operating state in which a wallpaperimage for a rotational display mode is distorted in a prior art portablecomputer;

FIG. 5 is a flow chart illustrating a method for controlling a displaymode in a portable computer in accordance with one preferred embodimentof the present invention;

FIGS. 6 and 7 are diagrams illustrating exemplary operating states ofdisplay modes arbitrarily set by a user in accordance with the presentinvention;

FIG. 8 is a flow chart illustrating a method for controlling a displaymode in the portable computer in accordance with another preferredembodiment of the present invention; and

FIG. 9 is a diagram illustrating an operating state in which thewallpaper image for the rotational display mode is not distorted in theportable computer in accordance with preferred embodiments of thepresent invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 is a block diagram illustrating the configuration of a relatedart portable computer. For example, the related art portable computercan include a central processing unit (CPU) 10, a video controller 11, atiming control chip 12, a liquid crystal display (LCD) 13, a touchscreen 14, a companion chip 15, etc. The related art portable computercan be coupled to a docking device 16 equipped with various applicationprograms.

The touch screen digitizer 14 can be formed on the entire surface of theLCD 13. The touch screen digitizer 14 or the like can allow a user toselect and input a desired key using an input device such as anelectronic pen or the user's finger as in a tablet computer, etc.

A display mode may be changed when a user optionally changes the displaymode, a system mode is changed, a docking device is connected, etc. Inthe second and third cases, the display mode can be directly orautomatically changed by one or more operating systems. Further, adisplay mode of an LCD include a landscape mode, a portrait mode, arotational mode, etc.

FIG. 5 is a flow chart illustrating a method for controlling the displaymode in the portable computer in accordance with an embodiment of thepresent invention. As shown in FIG. 5, the method for controlling adisplay mode in a portable computer will be described using and can beapplied to various portable computer systems such as a notebookcomputer, a tablet computer, etc. that can be configured by thecomponents shown in FIG. 1. However, the present invention is notintended to be so limited.

An operating system (OS) corresponding to a system mode selected by auser, for example, an OS for a notebook mode or an OS for a tablet modecan be directly or automatically booted in the portable computer whensystem power is turned on or enabled (block S10). In order to set thedisplay mode of a liquid crystal display (LCD), the booted OS can searchfor display mode information previously set for the currently bootedsystem mode, for example by a user (block S11). The display modeinformation previously set by the user can be LCD display modeinformation set for the sake of the user preference, task convenience orthe like. The display mode information previously set can be stored in astorage medium such as an electrically erasable and programmable readonly memory (EEPROM), hard disc or the like. Where the user does not setthe display mode information previously, the OS can search forinformation of a default display mode for the currently booted systemmode stored in the storage medium provided in the portable computer.

Then, the OS can determine whether or not the system can start while theLCD display mode is set to an arbitrary display mode previously set bythe user rather than the default display mode for the currently bootedsystem mode (block S12). If the LCD display mode cannot be set to thearbitrary display mode previously set by the user, the OS preferablysets the display mode of the LCD 13 to the landscape mode, the portraitmode, or the rotational display mode predetermined for the currentlybooted system mode or a docking device 16 connected to the portablecomputer (e.g., the default display mode) so that the LCD 13 can carryout the display operation in the set display mode (block S13). On theother hand, if the LCD display mode can be set to the arbitrary displaymode previously set by the user, the OS sets the LCD display mode to anarbitrary display mode corresponding to the searched display modeinformation so that the LCD 13 can carry out the display operation inthe set display mode (block S14).

The user can make a display mode change request when using the portablecomputer (block S15). When the user makes a display mode change requestwhile the portable computer is used (block S15), the LCD display modecan be set to an arbitrary display mode selected by the user, the LCD 13can perform the display operation in the set display mode, andinformation of the display mode changed by the user can be stored (blockS16).

For example, where the user changes the display mode to the portraitmode when the LCD display mode is set to the landscape mode, which isthe default display mode for the notebook mode of the current systemmode, the display operation can be carried out in the portrait mode asshown in FIG. 6. In another example, where the user changes the displaymode to the landscape mode in a state in which the LCD display mode isset to the portrait mode, which is the default display mode for thetablet mode of the current system mode, the display operation can becarried out in the landscape mode as shown in FIG. 7. Thus, upon a nexttransition to the tablet mode or system re-boot, the initial LCD displaymode can be the landscape mode. Where the user arbitrarily changes theLCD display mode to the landscape or portrait mode through an inputunit, the changed display mode information can be stored beingassociated with the current system mode in the EEPROM or hard disc.

Where the system is rebooted, where the system mode is converted fromthe notebook mode into the tablet mode or vice versa, or where thedocking device is connected, in a state in which the display modeinformation is stored being associated with each system mode asdescribed above (block S17), the OS can repeat the above blocks S11 toS14. The above-described operations can be continuously performed untilthe system is terminated (block S18).

FIG. 8 is a flow chart illustrating a method for controlling the displaymode in the portable computer in accordance with another embodiment ofthe present invention. As shown in FIG. 8, the method for controlling adisplay mode in a portable computer will be described using and can beapplied to various portable computer systems such as a notebookcomputer, a tablet computer, etc. that can be configured by thecomponents shown in FIG. 1. However, the present invention is notintended to be so limited.

An operating system (OS) corresponding to a system mode selected by auser, for example, an OS for a notebook mode or an OS for a tablet modecan be directly or automatically booted in the portable computer whensystem power is turned on or enabled (block S10). The booted OS candetermine whether or not the system can start while the LCD display modeis set to another display mode previously stored in storage medium(e.g., by a user) rather than a default display mode for the currentlybooted system mode (block S20). If the LCD display mode cannot be set tosaid another display mode previously stored in the storage medium forthe currently booted system mode, the booted OS can set the LCD displaymode to the default display mode for the currently booted system modesuch that the LCD 13 can carry out the display operation in the setdisplay mode (block S23). On the other hand, if the LCD display mode canbe set to said another display mode previously stored for the currentlybooted system mode, the booted OS can search for information of theanother display mode (e.g., by the user) stored in the storage medium(block S21) and set the LCD display mode to a display mode correspondingto the searched display mode information, such that the LCD 13 can carryout the display operation in the set display mode (block S22). Asremaining processes in FIG. 8 were previously described, a descriptionis omitted here.

As described above, block S12 shown in FIG. 5 and block S20 shown inFIG. 8 for allowing the OS to determine whether or not the system canstart while the LCD display mode is set to another display modepreviously stored in the storage medium (e.g., by a user) rather thanthe default display mode for the currently booted system mode are notnecessarily required. In other words, embodiments according to thepresent invention can include only searching for the display modeinformation for the currently booted system mode from the storagemedium; setting the LCD display mode to the searched display mode; andenabling the LCD to carry out the display operation in the set displaymode. Thus, the block S12 and S13 shown in FIG. 5 as well as blocks S20and S23 shown in FIG. 8 can be omitted.

Further in embodiments for controlling a display mode in the portablecomputer, a first display mode or the landscape mode can have an aspectratio of ‘1024×768’. Another display mode can have an aspect ratio of‘768×1024’, ‘600×800’, etc. other than the aspect ratio of the landscapemode. Said another display mode may be called a portrait mode. Also,there may be a rotational display mode. In the rotational display mode,an image displayed on the LCD 13 can be rotated, from a direction of thelandscape mode, by 90 degrees, 180 degrees, or 270 degrees and resizedto have the same aspect ratio of ‘1024×768’ as that of the landscapemode.

The rotational display mode in which an image displayed on the LCD 13 isrotated by 90 degrees and resized to have the same aspect ratio of thelandscape mode can be called a 90 degree rotational mode. In order for alogo, a background pattern, or/and a background picture included in awallpaper image displayed on the LCD 13 not to be distorted after thedisplay mode is converted from the landscape mode into another displaymode such as the portrait mode or the rotational mode, an original ratioof a horizontal width to a vertical length of the logo, the backgroundpattern, or/and the background picture included in the wallpaper imagemust be maintained. According to embodiments of the present invention, arespective wallpaper image, in which the original ratio of thehorizontal width to the vertical length of the logo, the backgroundpattern, or/and the background picture is maintained, can be separatelystored in a converted state for each display mode.

When a user makes a request for a conversion of the display mode of theLCD 13, for example, a display mode conversion from the landscape modeinto the portrait mode or the rotational mode, or vice versa, the videocontroller 11 preferably can retrieve a wallpaper image for therequested display mode among every wallpaper image for each displaymode, and output the retrieved wallpaper image to the LCD 13.Accordingly, as shown in FIG. 9, the wallpaper image in which the logo,the background pattern, or/and the background picture is not distortedcan be displayed, irrespective of the converted display mode.

As described above, embodiments according to the present invention weredescribed using an LCD as a display. However, the present invention isnot intended to be so limited.

Various software of firmware layers (formed of modules or routines, forexample), including applications, operating system modules, devicedrivers, BIOS modules, and interrupt handlers, may be stored in one ormore storage media in the portable computer system. The storage mediaincludes the hard disk drive, CD or DVD drive, floppy drive,non-volatile memory, and system memory. The modules, routines, or otherlayers stored in the storage media contain instructions that whenexecuted causes the system to perform programmed acts.

The software or firmware layers can be loaded into the system in one ofmany different ways. For example, code segments sorted on floppy disks,CD or DVD media, the hard disk, or transported through a networkinterface card, modem, or other interface mechanism may be loaded intothe system and executed as corresponding software or firmware layers. Inthe loading or transport process, data signals that are embodied ascarrier wave (transmitted over telephone lines, network liens, wirelesslinks, cables, and the like) may communicate the code segments to thesystem.

Any reference in this specification to “one embodiments,” “anembodiment” “example embodiment,” etc., means that a particular feature,structure, or characteristic described in connection with the embodimentis included in at least one embodiment of the invention. The appearancesof such phrases in various places in the specification are notnecessarily all referring to the same embodiment. Further, when aparticular feature, structure, or characteristic is described inconnection with any embodiment, it is submitted that it is within thepurview of one skilled in the art to effect such feature, structure, orcharacteristic in connection with other ones of the embodiments.Furthermore, for ease of understanding, certain method procedures mayhave been delineated as separate procedures; however, these separatelydelineated procedures should not be construed as necessarily orderdependent in their performance. That is, some procedures may be able tobe performed in an alternative ordering, simultaneously, etc.

As described above, embodiments according to the present invention havevarious advantages. Embodiments can enable a display (e.g., liquidcrystal display) to carry out a display operation in an arbitrarydisplay mode set for a changed system mode by a user when the systemmode is changed between a tablet mode and a notebook mode or a dockingdevice is connected, and can reduce or prevent a wallpaper image frombeing distorted irrespective of display modes. Embodiments according tothe present invention can provide a method and an apparatus forcontrolling a display mode in a portable computer that can allow a userto arbitrarily change a display mode of a display appropriately tovarious task environments for an information search, document edition,etc., enable the display to carry out a display operation in a displaymode previously set for a changed system mode by the user when a systemis rebooted or a system mode is changed, which can increase theconvenience and efficiency of the portable computer. Also, embodimentscan provide a method for controlling a display mode in a portablecomputer that can enable a logo, a background picture, etc. included ina wallpaper image to be displayed properly without being distorted whenthe display mode of the LCD is changed.

The foregoing embodiments and advantages are merely exemplary and arenot to be construed as limiting the present invention. The presentteaching can be readily applied to other types of apparatuses. Thedescription of the present invention is intended to be illustrative, andnot to limit the scope of the claims. Many alternatives, modifications,and variations will be apparent to those skilled in the art. In theclaims, means-plus-function clauses are intended to cover the structuresdescribed herein as performing the recited function and not onlystructural equivalents but also equivalent structures.

1. A method for controlling a display mode in a portable computer,comprising: storing information of a changed display mode when thedisplay mode of a display is changed in response to a user's request;and setting the display mode to an arbitrary display mode correspondingto the stored changed display mode information when at least one of asystem power supply of the portable computer is enabled or a system modeis changed, wherein the setting the display mode to an arbitrary displaymode comprises, determining whether the display mode can be changed,wherein the display mode is variable in at least one system mode, andsetting the display mode of the display to the arbitrary display modecorresponding to the stored changed display mode information when thedisplay mode can be changed as a result of the determination, whereinthe setting the display mode of the display comprises, setting thedisplay mode according to a default display mode information of thesystem when the display mode cannot be changed as the result of thedetermination, and wherein the system mode includes one of notebook modeand tablet mode, wherein said each system mode is supported by aseparate operating system.
 2. The method of claim 1, wherein the storedchanged display mode information includes display style and displayorientation and is changed from a default display mode information for acorresponding system mode.
 3. The method of claim 2, wherein the displaystyle includes one of notebook mode and tablet mode and the displayorientation includes one of landscape direction and portrait direction.4. A method for controlling a display mode in a portable computerincluding a display that supports at least two system modes, comprising:storing information of a changed display mode when the display mode of adisplay is changed from a default display mode information associatedwith a system mode or the default display mode information; and settingthe display mode of the display to an arbitrary display modecorresponding to the stored display mode information associated with acurrent system mode when the portable computer is turned on, whereineach of said at least two system modes are supported by a separateoperating system.
 5. The method of claim 4, wherein the settingcomprises: determining whether the display mode can be changed when theportable computer is turned on when the changed display mode informationis stored; reading the stored display mode information when the displaymode can be changed as the result of the determination; and setting thedisplay mode to the arbitrary display mode corresponding to the readdisplay mode information.
 6. The method of claim 4, wherein the settingcomprises: determining whether the display mode can be changed when theportable computer is turned on when the changed display mode informationis stored, wherein the display mode is variable in at least one systemmode; and setting the display mode to a default display modecorresponding to default display mode information of the current systemmode when the display mode cannot be changed as the result of thedetermination.
 7. The method of claim 6, wherein the display is a liquidcrystal display.
 8. The method of claim 4, wherein the stored changeddisplay mode information includes one of landscape direction andportrait direction, and wherein the system mode includes one of notebookmode and tablet mode, wherein an additional system mode is supported byone of said separate operating systems.
 9. An article including amachine-readable storage medium containing instructions for controllinga display mode in a portable computer, the instructions, when executed,causing the portable computer to: store information of a changed displaymode corresponding to a system mode when the display mode of a displayis changed from a default display mode information associated with eachsystem mode; read the stored display mode information corresponding to acurrent system mode when a system is turned on or the system mode ischanged when the display mode information is stored; and set the displaymode to correspond to the read display mode information, wherein saideach system mode is supported by a separate operating system.
 10. Thearticle of claim 9, wherein the storage medium contains instructions forcausing the portable computer to: determine whether the display mode waschanged; and set the display mode to correspond to the read display modeinformation when the display mode was changed as a result of thedetermination.
 11. The article of claim 10, wherein the storage mediumcontains instructions for causing the portable computer to: set thedisplay mode to a display mode corresponding to default display modeinformation of the current system mode when the display mode cannot bechanged as the result of the determination.
 12. The article of claim 10,wherein the stored display mode information includes display orientationbeing one of landscape direction and portrait direction, and wherein thesystem mode includes one of notebook mode and tablet mode.
 13. Thearticle of claim 11, wherein the stored display mode informationincludes display orientation being one of landscape direction andportrait direction, and wherein the system mode includes one of notebookmode and tablet mode.
 14. A method for controlling a display mode in aportable computer, comprising: when a change of the display mode of adisplay is requested by a user, retrieving a wallpaper image for therequested display mode among at least two corresponding wallpaper imagespreviously stored each associated with different display modes; anddisplaying the retrieved wallpaper image on the display, wherein thedisplay mode include notebook mode and tablet mode.
 15. The method ofclaim 14, wherein the display modes include a reference mode and aplurality of rotational modes, wherein images displayed on the displayin each of the plurality of rotational modes is respectively rotatedfrom a direction of the reference mode by a natural number times apredetermined angle and resized to have the same aspect ratio of that ofthe reference mode, and wherein a ratio of a horizontal width to avertical length of a logo, a background pattern or a background pictureincluded in the wallpaper images for the plurality of rotational modesare same as an original ratio of the horizontal width to the verticallength of the logo, the background pattern or the background pictureincluded in the wallpaper image for the reference mode.
 16. The methodof claim 15, wherein the predetermined angle is 90 degrees, and theplurality of rotational modes comprise at least one of a 90 degreerotational mode and a 270 degree rotational mode.
 17. The method ofclaim 15, wherein the display modes further include other display modesin which images displayed on the display are respectively resized tohave different aspect ratios of that of the reference mode, wherein theratio of the horizontal width to the vertical length of the logo, thebackground pattern or the background picture included in the wallpaperimages for said other display modes are same as the original ratio ofthe horizontal width to the vertical length of the logo, the backgroundpattern or the background picture included in the wallpaper image forthe reference mode.
 18. The method of claim 14, wherein each of thewallpaper images for the display modes are separately stored, andwherein the display is a liquid crystal display.
 19. The method of claim14, wherein the change of display mode is from a notebook mode of aconvertible portable computer, comprising: storing information of achanged display mode when the display mode of the display is changed inassociation from a default display mode information associated with asystem mode; and setting the display mode of the display to an arbitrarydisplay mode corresponding to the stored display mode informationassociated with a current system mode when the portable computer isturned on or the system mode is changed.
 20. A portable computer havinga configuration that is capable of switching a system mode between anotebook computer mode and a tablet computer mode, comprising: a displayconfigured to support at least two display mode orientations; an inputdevice configured to change a display mode orientation of the displayaccording to a user's selection from a default display mode orientationfor a corresponding system mode; a storage device configured to storethe changed display mode orientation of the display corresponding to thesystem mode; and a controller configured to set the display modeorientation of the display to correspond to the stored display modeorientation corresponding to a current system mode when the system modeis changed, wherein the storage device is configured to store wallpaperimages for each display mode orientation.
 21. The portable computer ofclaim 20, wherein the controller is configured to set the display modeof the display to correspond to the stored display mode orientationcorresponding to the current system mode when a system is turned on andthe display mode orientation is stored.
 22. The portable computer ofclaim 21, wherein the controller sets the display mode to a defaultdisplay mode orientation when the display mode cannot be set to thestored display mode orientation changed by the user.
 23. The portablecomputer of claim 21, wherein the display mode and the display modeorientation correspond to a background image in a desktop application ofthe portable computer.
 24. The portable computer of claim 20, whereinthe storage device stores information of the default display modeorientation of the display for each system mode when the user does notchange the display mode orientation, wherein said each system mode issupported by a separate operating system.
 25. The portable computer ofclaim 20, wherein the controller retrieves a wallpaper image for a setdisplay mode orientation among the wallpaper images for each displaymode orientation stored in the storage device and displays the retrievedwallpaper image.
 26. The portable computer of claim 20, wherein thedisplay mode orientation includes landscape, portrait, rotational 90°0and rotational 270°.
 27. An apparatus for controlling a display mode ina portable computer including a liquid crystal display (LCD) forsupporting at least two display modes, comprising: first storing meansfor storing display mode information of the LCD changed by a user,wherein the display mode information is stored associated with a systemmode, and wherein the system mode includes one of notebook mode andtablet mode; and control means for setting the LCD display mode to anarbitrary display mode corresponding to display mode information storedin association with a current system mode when a system is booted or thesystem mode is changed in a state in which the display mode informationis stored, and wherein the arbitrary display mode is different from afirst display mode associated with a system mode, and wherein said eachsystem mode is supported by a separate operating system.
 28. Theapparatus of claim 27, wherein the first storing means storesinformation of default display modes of the LCD for each system modewhen the user does not change the LCD display mode.
 29. The apparatus ofclaim 28, wherein the control means sets the LCD display mode to adefault mode for the current system mode when the LCD display modecannot be set to the display mode changed by the user when the system isbooted or the system mode is changed.
 30. The apparatus of claim 27,further comprising a second storing means for storing wallpaper imagesfor each LCD display mode, wherein the control means retrieves awallpaper image for a set display mode among the wallpaper images foreach LCD display mode stored in the second storing means, and displaysthe retrieved wallpaper image.
 31. The apparatus of claim 27, whereinthe stored display mode information includes the system mode and displayorientation, wherein the display orientation includes one of landscapedirection, portrait direction and rotation direction.
 32. A portablecomputer having a configuration that is capable of changing an operatingmode between a first operating mode and a second operating mode,comprising: a display configured to support at least two display modeorientations; an input device configured to change a display modeorientation of the display according to a user's selection; a storagedevice configured to store the changed display mode orientation of thedisplay corresponding to the operating mode of the portable computer;and a controller configured to set the display mode orientation of thedisplay to correspond to the stored display mode orientationcorresponding to a current operating mode when the operating mode ischanged, wherein each of the first operating mode and the secondoperating mode are supported by a separate operating system, wherein thestorage device is configured to store a first image and a second imagefor each display mode orientation, the first image and the second imagebeing different from each other, and wherein, among the first image andthe second image, one image corresponding to the set display modeorientation is retrieved, and display, among the first image and thesecond image, the retrieved one image corresponding to the set displaymode orientation, via the display.
 33. The portable computer of claim32, wherein each of the first operating mode and the second operatingmode includes a default display mode orientation, and a display modeorientation is changed from the default display mode orientation by theuser's selection.
 34. The portable computer of claim 32, wherein thefirst image corresponds to a first display mode orientation and thesecond image corresponds to a second display mode orientation.
 35. Theportable computer of claim 32, wherein the current operating mode of theportable terminal is maintained after the portable terminal is rebooted.36. The portable terminal of claim 35, wherein the portable terminal isrebooted by determining the operating mode of the portable computer anddetermining a display mode of the portable computer.
 37. The portableterminal of claim 32, wherein the first operating mode is a tablet modeand the second operating mode is a notebook mode.
 38. A method forcontrolling a display in a portable computer, the portable computerbeing capable of changing an operation mode between a first operatingmode and a second operating mode, the method comprising: receiving auser's selection for changing a display mode orientation; storing thechanged display mode orientation corresponding to a specific operatingmode according to the user's selection; setting the display modeorientation to correspond to the stored display mode orientationcorresponding to a current operating mode when the operating mode ischanged, wherein each of the first operating mode and the secondoperating mode are supported by a separate operating system, wherein theportable computer is configured to store a first image and a secondimage for each display mode orientation, the first image and the secondimage being different from each other; and displaying, among the firstimage and the second image, one image corresponding to the set displaymode orientation.
 39. The method of claim 38, wherein each of the firstoperating mode and the second operating mode includes a default displaymode orientation, and a display mode orientation is changed from thedefault display mode orientation by the user's selection.
 40. The methodof claim 38, wherein the first image corresponds to a first display modeorientation and the second image corresponds to a second display modeorientation.
 41. The method of claim 38, wherein the current operatingmode of the portable terminal is maintained after rebooting the portableterminal.
 42. The method of claim 41, wherein rebooting the portablecomputer includes determining an operating mode of the portable computerand determining a display mode of the portable computer.
 43. The methodof claim 38, wherein the first operating mode is a tablet mode and thesecond operating mode is a notebook mode.
 44. A portable computer havinga configuration that is capable of changing an operating mode between afirst operating mode and a second operating mode, comprising: a displayconfigured to support at least two display orientations; an input deviceconfigured to change a display orientation according to a user'sselection; a storage device configured to store the changed displayorientation corresponding to a specific operating mode; and a controllerconfigured to: set, when an operating mode is changed to the specificoperating mode from a previous operating mode, the display orientationwith the stored display orientation corresponding to the changedoperating mode, wherein each of the first operating mode and the secondoperating mode are supported by a separate operating system, resize animage displayed in the previous operating mode while maintaining anaspect ratio of the image, based on the set display orientation, anddisplay the resized image with the set display orientation.
 45. Theportable computer of claim 44, wherein the aspect ratio is a ratio ofwidth to height of an image.
 46. The portable computer of claim 44,wherein each of the first operating mode and the second operating modehas a default display orientation.
 47. The portable computer of claim46, wherein the default display orientation for each of the firstoperating mode and the second operating mode is pre-assigned.
 48. Theportable computer of claim 44, wherein the changing of the operatingmode from the previous operating mode to the specific operating mode isperformed by a user.
 49. The portable computer of claim 44, wherein thefirst operating mode is a tablet mode and the second operating mode is anotebook mode.
 50. A method for controlling a display in a portablecomputer, the portable computer being capable of changing an operationmode between a first operating mode and a second operating mode, themethod comprising: receiving a user's selection for changing a displayorientation; storing the changed display orientation corresponding tospecific operating mode; setting, when an operating mode is changed tothe specific operating mode from a previous operating mode, the displayorientation with the stored display orientation corresponding to thechanged operating mode, wherein each of the first operating mode and thesecond operating mode are supported by a separate operating system;resizing an image displayed in the previous operating mode whilemaintaining an aspect ratio of the image, considering the set displayorientation; and displaying the resized image with the set displayorientation.
 51. The method of claim 50, wherein the aspect ratio is aratio of width to height of an image.
 52. The method of claim 50,wherein each of the first operating mode and the second operating modehas a default display orientation.
 53. The method of claim 52, whereinthe default display orientation for each of the first operating mode andthe second operating mode is pre-assigned.
 54. The method of claim 52,wherein the changing of the operating mode from the previous operatingmode to the specific operating mode is performed by a user.
 55. Themethod of claim 50, wherein the first operating mode is a tablet modeand the second operating mode is a notebook mode.
 56. A method forcontrolling a display mode in a portable computer, comprising: storinginformation of a changed display mode when the display mode of a displayis changed in response to a user's request; and setting the display modeinto the changed display mode, wherein the portable computer comprisingat least two different operating modes, the display mode can be setduring a current operating mode, and the changed display mode and thecurrent operating mode are kept after rebooting the portable computer,wherein rebooting the computer includes determining an operating mode ofthe portable computer and determining a display mode of the portablecomputer, wherein each of at least two different operating modes aresupported by a separate operating system.
 57. The method of claim 56,wherein the at least two different operating modes include a tablet modeand a notebook mode.
 58. The method of claim 56, wherein the displaymode is one of a landscape mode, a portrait mode or a rotational displaymode.
 59. A portable computer having at least two different operatingmodes comprising: a display; an input device to receive a user's requestto change a display mode of the display; a storage device to storeinformation of a changed display mode when the display mode of thedisplay is changed in response to input of the input device; and acontroller to set the display mode into the changed display mode,wherein the display mode can be set during a current operating mode, andthe changed display mode and the current operating mode are kept afterrebooting the portable computer, wherein rebooting the computer includesdetermining an operating mode of the portable computer and determining adisplay mode of the portable computer, wherein each of the at least twodifferent operating modes are supported by a separate operating system.60. The portable computer of claim 59, wherein the at least twodifferent operating modes include a tablet mode and a notebook mode. 61.The portable computer of claim 59, wherein the display mode is one of alandscape mode, a portrait mode or a rotational display mode.